<style scoped>
.code {
    margin-bottom: 0.1em;
}
.used {
    text-decoration: line-through;
}
</style>

<template>
  <div>
    <h3>{{ $t('settings.recovery_title') }}</h3>
    <div class="form-group">
      <a class="btn btn-primary" @click="showRecoveryModal">
        {{ $t('settings.recovery_show') }}
      </a>
    </div>

    <sweet-modal id="recoveryModal" ref="recoveryModal" overlay-theme="dark" :title="$t('settings.recovery_title')">
      <notifications group="recovery" position="top middle" :duration="5000" width="400" />

      <p>{{ $t('settings.recovery_help_intro') }}</p>
      <p :class="[ dirltr ? 'ml3' : 'mr3' ]">
        <span v-for="code in codes" :key="code.id" :cy-name="'recovery-' + code.id">
          <pre class="code" :class="[ code.used ? 'used' : '' ]" :title="[ code.used ? usedHelp : '']">{{ code.recovery }}</pre>
        </span>
      </p>
      <p>{{ $t('settings.recovery_help_information') }}</p>
      <div class="relative">
        <span :class="[ dirltr ? 'fl' : 'fr' ]">
          <a class="btn" @click="generateNewCodes">
            {{ $t('settings.recovery_generate') }}
          </a>
          <br />
          <small class="form-text text-muted">
            {{ $t('settings.recovery_generate_help') }}
          </small>
        </span>
        <span :class="[ dirltr ? 'fr' : 'fl' ]">
          <a class="btn btn-primary" :title="copyHelp" @click="copyIntoClipboard">
            {{ $t('app.copy') }}
          </a>
          <!--
            <a @click="download" class="btn">{{ $t('app.download') }}</a>
            -->
          <a class="btn" @click="closeRecoveryModal">
            {{ $t('app.close') }}
          </a>
        </span>
      </div>
    </sweet-modal>
  </div>
</template>

<script>
import { SweetModal } from 'sweet-modal-vue';

export default {

  components: {
    SweetModal
  },

  data() {
    return {
      codes: [],
    };
  },

  computed: {
    dirltr() {
      return this.$root.htmldir == 'ltr';
    },
    usedHelp() {
      return this.$t('settings.recovery_already_used_help');
    },
    copyHelp() {
      return this.$t('settings.recovery_copy_help');
    },
  },

  methods: {
    showRecoveryModal() {
      this.codes = [];
      axios.post('settings/security/recovery-codes')
        .then(response => {
          this.codes = response.data;
          this.$refs.recoveryModal.open();
        }).catch(error => {
          this.notify(error.response.data.message, false);
        });
    },

    generateNewCodes() {
      this.codes = [];
      axios.post('settings/security/generate-recovery-codes')
        .then(response => {
          this.codes = response.data;
        }).catch(error => {
          this.notify(error.response.data.message, false);
        });
    },

    closeRecoveryModal() {
      this.$refs.recoveryModal.close();
    },

    copyIntoClipboard() {
      this.$copyText(this.getDataStream())
        .then(response => {
          this.notify(this.$t('settings.recovery_clipboard'), true);
        });
    },

    getDataStream() {
      var text = this.$t('settings.recovery_help_intro')+'\n';
      var i = 1;
      this.codes.forEach(code => {
        if (code.used) {
          text += i + '. ---------\n';
        } else {
          text += i + '. ' + code.recovery + '\n';
        }
        i++;
      });
      return text;
    },

    notify(text, success) {
      this.$notify({
        group: 'recovery',
        title: text,
        text: '',
        type: success ? 'success' : 'error'
      });
    }
  }
};
</script>
